Improve CommandFramework Exception readability

SpigotCore_Main/src/de/steamwar/command/CommandFrameworkException.java

@@ -32,6 +32,7 @@ public class CommandFrameworkException extends RuntimeException {
     private String message;
 
     CommandFrameworkException(InvocationTargetException invocationTargetException, String alias, String[] args) {
+        super(invocationTargetException);
         this.invocationTargetException = invocationTargetException;
         this.alias = alias;
         this.args = args;

SpigotCore_Main/src/de/steamwar/command/SWCommand.java

@@ -102,7 +102,9 @@ public abstract class SWCommand {
         } catch (CommandNoHelpException e) {
             // Ignored
         } catch (CommandFrameworkException e) {
+            if (Bukkit.getServer() != null) {
                 Bukkit.getLogger().log(Level.SEVERE, e.getBuildStackTrace());
+            }
             throw e;
         }
     }

SpigotCore_Main/testsrc/de/steamwar/command/SimpleCommandTest.java

@@ -39,9 +39,9 @@ public class SimpleCommandTest {
     public void testCommandParsing() {
         try {
             simpleCommand.execute(new TestCommandSender(), "", new String[]{});
-        } catch (SecurityException securityException) {
-            if (securityException.getCause().getCause() instanceof ExecutionIdentifier) {
-                ExecutionIdentifier executionIdentifier = (ExecutionIdentifier) securityException.getCause().getCause();
+        } catch (CommandFrameworkException commandFrameworkException) {
+            if (commandFrameworkException.getCause().getCause() instanceof ExecutionIdentifier) {
+                ExecutionIdentifier executionIdentifier = (ExecutionIdentifier) commandFrameworkException.getCause().getCause();
                 assertThat(executionIdentifier.getMessage(), is("Simple execute without any parameters"));
                 return;
             }